They're alone in the hotel room, and all she can do is ask him to be gentle... Shiho's trying to make ends meet as an administrative assistant at a hospitality company. Growing up in an adoptive family with a little sister, Mayu, who bullies her to this day, Shiho's hesitant about seeking love or happiness. Nevertheless, when Mayu forces her to attend a group blind date with a bunch of older men, Shiho meets Yukito, a charming man 12 years her senior. After hitting it off over drinks, they end up spending a passionate night together where Shiho experiences a man's touch for the first time. The morning after, she's thrown for a loop when Yukito proposes to her out of nowhere. However, that's nothing compared to the shock that awaits her when she finds out what he does for a living!